Definition of hormone in English:



  • 1A regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action.

    • ‘It turns out that the active form of vitamin D is one of the most potent hormones to inhibit cell proliferation.’
    • ‘HGH is one of several hormones that maintain blood sugar within a normal range.’
    • ‘Specific hormones that belong to this category are epinephrine and norepinephrine.’
    • ‘Just like the normal endometrium, endometrial cells need the hormone oestrogen to survive and grow.’
    • ‘Blood glucose is tightly regulated in the body by two hormones called insulin and glucagon.’
    • ‘The ovaries also make the hormones oestrogen and progestogen, which help to regulate the menstrual cycle (periods).’
    • ‘The gene makes a receptor protein that is stimulated by a brain hormone called vasopressin.’
    • ‘The gene altered in the giant rats makes the protein Leptin, a hormone released by fat cells as an appetite regulator.’
    • ‘It's one of the lipids, or fats, your body makes and is used to build cell walls and form some hormones and tissues.’
    • ‘The physical stress of a cold or other illness causes your body to produce hormones that raise your blood sugar level.’
    • ‘Insulin is the hormone which keeps blood sugar levels within the normal healthy range.’
    • ‘Over the past three decades a great deal of evidence has accumulated in favor of the hypothesis that steroid receptor hormones act via regulation of gene expression.’
    • ‘The kidneys also produce hormones that regulate our blood pressure and body salts.’
    • ‘People who are constantly under stress have a high level of hormones like cortisone and adrenalin in their blood.’
    • ‘These gonadotropins in turn stimulate synthesis of steroid hormones in target tissues.’
    • ‘The organ produces enzymes essential for digestion and secretes hormones that help control blood sugar levels.’
    • ‘The concept of hormones as potent substances regulating physical processes in organisms implied a drastic change in the paradigm of physiology.’
    • ‘Fat cells convert hormones called androgens into estrogen, which raises a woman's risk.’
    • ‘Diabetes is caused by problems with insulin, the hormone that triggers cells to absorb and store glucose from the blood.’
    • ‘From a physiological perspective, we need to better understand how hormones regulate tissues.’
    1. 1.1A synthetic substance with an effect similar to that of an animal or plant hormone.
      • ‘The synthetic hormones have side effects, especially liver qi stagnation and blood stagnation.’
      • ‘Anabolic steroids are made with synthetic male hormones and cause more dangerous side-effects among girls than boys.’
      • ‘Age, ethnicity, body mass index, and previous use of hormones had no effect on outcomes.’
      • ‘One recommended the usual synthetic hormones; another prescribed black cohosh and yam extract.’
      • ‘They could be giving hormones to the farm animals, or antibiotics, and who knows what's in their feed.’
      • ‘Doctors insert rods into their arms which release synthetic hormones that prevent the teenagers producing eggs.’
      • ‘There are no synthetic hormones, no pesticides, and no unnecessary ingredients.’
      • ‘The basic hormone on which all synthetic anabolic steroids are based.’
      • ‘Anabolic steroids are synthetic hormones that cause the body to produce muscle and prevent muscle breakdown.’
      • ‘For this reason, the synthetic hormones are technically known as ovulation inhibitors.’
      • ‘Treatment is typically with synthetic thyroid hormones, which can normalize blood pressure.’
      • ‘As your baby's born, you may be given an injection of a synthetic hormone, usually in your thigh or buttock.’
      • ‘People become vegetarians for all kinds of reasons; pumping sentient animals full of hormones and making their lives hell being only one of them.’
      • ‘I can't say I missed bleeding, but I did feel weird about a steady diet of synthetic hormones.’
    2. 1.2A person's sex hormones as held to influence behavior or mood.
      • ‘I need it to keep my hormones leveled out or I get the worst possible mood swings you can imagine.’
      • ‘It may have been his hormones which improved his mood, as I watched him check her out constantly.’
      • ‘It was not the scantily clad woman that disgusted Joel, but the effect his own hormones had on him.’
      • ‘It is also influenced by her weight and by hormones.’
      • ‘And how can you trust your teenage opinion of people, when those opinions were being formed via rampaging hormones and juvenile mood swings?’
      • ‘Follow these steps to keep your hormones in balance - and your hormone-induced mood swings to a minimum.’


Early 20th century: from Greek hormōn, present participle of horman impel, set in motion.